The Rockies clearly have a penchant for lefty pitchers as they have yet another lefty rookie joining their bullpen: Tyler Matzek. It will be interesting to see how this lefty leaning line-up will serve them during the 2010 season...The Rockies clearly have a penchant for lefty pitchers as they have yet another lefty rookie joining their bullpen: Tyler Matzek. It will be interesting to see how this lefty leaning line-up will serve them during the 2010 season.